EP0961526A2 - Système de commande électronique pour l'opération d'éclairages de secours - Google Patents

Système de commande électronique pour l'opération d'éclairages de secours Download PDF

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Publication number
EP0961526A2
EP0961526A2 EP99201550A EP99201550A EP0961526A2 EP 0961526 A2 EP0961526 A2 EP 0961526A2 EP 99201550 A EP99201550 A EP 99201550A EP 99201550 A EP99201550 A EP 99201550A EP 0961526 A2 EP0961526 A2 EP 0961526A2
Authority
EP
European Patent Office
Prior art keywords
devices
emergency
lamps
control system
electronic control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP99201550A
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German (de)
English (en)
Other versions
EP0961526A3 (fr
Inventor
Gian Pietro Beghelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beghelli SpA
Original Assignee
Beghelli SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beghelli SpA filed Critical Beghelli SpA
Publication of EP0961526A2 publication Critical patent/EP0961526A2/fr
Publication of EP0961526A3 publication Critical patent/EP0961526A3/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/29—Circuits providing for substitution of the light source in case of its failure

Definitions

  • This invention refers to an electronic control system for operating emergency lighting lamps.
  • All these control operations may be carried out on the entire emergency system, on a certain group of lamps or on each individual lamp, so as to inform on its reliability and predict its efficiency the moment emergency conditions occur.
  • results of these tests may be recorded on paper or forwarded through a telephone line, thanks to certain auxiliary devices which can be connected to an electronic processing station.
  • an electronic control station may communicate with any peripheral unit by interrogations performed automatically or periodically, at definite intervals or pursuant to a specific command.
  • the emergency lamps are installed at premises fitted with discharge-type lamps (neon tubes or other), as actually happens with most of the ordinary lighting systems of industrial workshops or offices due to the fact that the lamps deactivate automatically when normal operating conditions return, such as if a short-circuit is eliminated or a network power supply flows back into the circuit, a complete lighting condition cannot be guaranteed at the end of the emergency situation, due to the fact that the discharge-type lamps, once they're deactivated based on an electric power failure or other cause, manage to reach their full operating level only after periods approaching 10 minutes.
  • the scope of this invention is therefore to offer an electronic control system for operating emergency lamps, capable of eliminating the mentioned drawbacks or allowing the uniform and constant lighting of an entire working area in case of an emergency such as a short circuit, a fire, a temporary network power supply failure, etc.
  • Another scope of this invention is to make it possible to install the mentioned electronic control system in already existing electric systems, without applying any changes to either a new or an existing system.
  • a further scope of this invention is to produce an electronic control system capable of guaranteeing a perfect operation of the emergency lamps as well as a conformity of the operating procedures and design to the existing regulations in the branch.
  • a centralized control station allows monitoring the operation of the emergency lamps by transmitting various digital control codes, each of which is associated with a specific function of the lamps and corresponds to a series of codes identifying various states of the lamps' functional condition, and eventually a pre-adjustable code to recognize their position.
  • a particular application program governing the entire system also supplies the necessary instructions to a micro-processor, in order to extend the period during which the emergency lamps are active, thus allowing the discharge lamps of a certain environment's ordinary system to attain to attain their fully operating level, after their nominal operating conditions have been reached.
  • the prospective solution also allows observing the regulations set up for the centralized control lines designed to enable and disable the emergency function, according to which the lamps must maintain their condition of enabling an emergency function even in the case of a short circuit between the two conductors of a transmission line.
  • an electronic control system for operating emergency lamps includes a basic unit comprising a power supply circuit constituted by a battery charging unit 10, a sensor 20 to indicate the presence of a network supply, a feeding device 30 and a controlling device 80 for a logical control section 40.
  • the power supply circuit 30 is connected to the electrical power supply network and an accumulator battery B and supplies the start-up energy, through a pilot section 50, to the emergency lamps L.
  • the number 60 indicates a logic control unit for the functional conditions of the lamps L, while a further enabling and disabling circuit for the emergency functions is constituted by a remote control device and a measuring circuit for the minimum supply voltage included in the device 80.
  • the number 90 indicates an electronic control circuit for the enabling and disabling conditions of an operating test for the lamps L.
  • a start-up oscillator generically indicated by the letters OS, and comprising a transformer device S, is provided between the accumulator battery B and the connecting terminals M, M1 to the emergency lamps L.
  • the secondary circuit of the transformer S is connected to the earth by a "shunt" resistor R6 of the logic control unit 60, which measures the operating conditions of the lamps L.
  • a peak measuring device is provided in parallel with the resistor R6, which is constituted by a diode D2 connected to a parallel circuit formed by a condenser C1 and a resistor R7.
  • the outlet 11 of the peak measuring device is simultaneously supplied to the polarizing network of the base of two "PNP" signaling transistors T2, T3, whose collectors are attached to a supply clamp and the inlet 38 of a micro-processor 24 of the logical control section 40, while the emitters are connected to the earth.
  • the polarizing networks of each base are different for the two transistors T2 and T3.
  • this voltage is less than a certain minimum value that can be pre-set by appropriately sizing the polarization networks, it will be unable to bring the transistor T1 to a conductive condition.
  • the high voltage level present on the collector of the transistor T1 is thus supplied to a corresponding inlet of the micro-processor 24, who takes care of emitting a signal, through the LED diodes 14, of a missing or disconnected lamp L.
  • the lamp L is of a discharge or fluorescent type and the discharge tube is inactive, the current flowing in the resistor R6 has a high value, and the voltage supplied by the peak measuring device is consequently also at a high value.
  • this voltage value exceeds a certain limit that can be pre-set by an appropriate configuration of the polarization network associated with the transistor T2, the latter is brought to a conductive condition and the voltage on its collector will have a low value.
  • the voltage on the collector of the transistor T2 is supplied to a corresponding inlet of the microprocessor 24 of the control section 40, which even in this case provides for signaling the condition that a tube is inactive.
  • the voltage value occurring at the ends of the transistor R6 is intermediate between the minimum and maximum values mentioned above.
  • the polarizing networks of the two transistors T2 and T3 may be set up in such a manner that in the presence of such an intermediate voltage value the transistor T2 is invested by a low collector voltage, while the transistor T3 has a high voltage on its own collector.
  • the signals supplied to the micro-processor 24 allow the latter to supply a visual and/or acoustic, local or remote signal.
  • the electronic control circuit 90 is set up in such a manner as to allow transmitting the piloting signals from one control station to the logical control units 60 of the emergency lamps L.
  • the signals on the operating condition of the emergency lamps L are produced at a local level, on each of the lamps L, by lighted signaling devices 14, for instance LED diodes, capable of assuming different colors or alternative activation modes, depending on the signal's content.
  • the terminal clamps 18, 19 belong to the measuring device 80 and the electronic control circuit 90, respectively, can be provided, by two separate control lines and simple push-buttons and switches, with logical signals, preferably of a "low” or “high” voltage type essentially constant for a predetermined period of time, so as to control the enabling or disabling condition of an emergency function or the activation or deactivation of the testing procedures for operating the emergency lamps L.
  • the centralized enabling and disabling control of the emergency function allows the simultaneous programming of the two states for all the supplied lamps L.
  • control signals are appropriately memorized in the microprocessor 24 of the control unit 40, which is capable of interpreting the incoming signals by comparing them with the codes previously memorized in its interior, and of activating or deactivating the corresponding functions.
  • the micro-processor 24 is conveniently programmable, so as to enable it to automatically monitor the transmission of the control signals, especially as relates to the testing functions of the lighting lamps L and the enabling or disabling of the emergency functions.
  • the de-coupling circuit 70 comprises a "PNP" type transistor T1 inserted between a resistor R5 and a diode D1 of the measuring circuit of the power supply device 30.
  • the transistor T1 is supplied, by the resistors R1, R2, the terminal clamps 18, 19 and the diode D1, with a voltage value essentially identical to the network supply voltage.
  • a polarizing network for the bases R3, R4 allows the transistor T1 to be cut-off, due to the fact that the base voltage is higher than the voltage value found on the emitter, thus supplying a high voltage to the outlet 29 of the electronic circuit 90, which is connected to the microprocessor 24 of the logic control section 40.
  • the transistor T1 Under emergency conditions, meaning in the absence of a network power supply, the transistor T1 is brought to a conductive condition by an emergency enabling control signal, endowed with a voltage level decidedly lower than the 6 volt nominal value needed for enabling an emergency function.
  • an interface communicating with the programmable micro-processor 24 may allow a bi-directional transmission of data and commands between the lamps L and the micro-processor 24 itself, in which the signaling structures or their interpreting codes and associated functions are programmed.
  • a voltage signal equal to 0 volt may correspond to an inhibiting command of the testing function for operating the lamp, while a voltage signal rapidly changing within a pre-established frequency range and a voltage spread of 0 to 6 volt may correspond to a transmission or reception signal for data and commands to the terminal clamps 18, 19, in accordance with a pre-established codification protocol.
  • the micro-processor 24 may eventually, by diversifying its answer to the controls depending on the lamps' operating condition and the reasons causing their activation, carry out certain functions needed to preserve the various functional units of the lamps L, such as for instance the deactivation of their start-up if the lamp L should happen to be missing or malfunctioning.
  • the microprocessor 24 is programmed by a special program for electronic computers, which allows reverting to the nominal operating conditions of the lighting lamps installed in work premises, in particular of a discharge type, at certain periods of time delayed with respects to the instant in which the normal power supply conditions from the previously malfunctioning electric network are re-established.
  • the emergency lamps are automatically deactivated and the lighting of the site is again and exclusively entrusted to the discharge lamps.
  • a voluntary resetting of the normal operating conditions is not carried out at the instant of actual return to an emergency condition, but after a time lapse of 15 minutes, so as to allow the emergency lamps to continue operating and to give the discharge lamps, which are designed to provide an ambient lighting under normal operating conditions, a chance to properly cool down and to attain their fully operating condition within the expected time.
  • the application program for electronic computers listed above provides, in one of its exemplifying and non-limiting embodiments, for a 1-minute functional test run every 28 days, and an autonomy test for the accumulator battery used to supply current to the emergency lamps, run every 26 weeks and lasting from 1 to 3 hours.
  • the application program also provides for the possibility of programming the charging of the battery itself in a buffer mode, meaning in sequential steps or charging impulses for a pre-established period of time.
EP99201550A 1998-05-20 1999-05-15 Système de commande électronique pour l'opération d'éclairages de secours Ceased EP0961526A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI981110 1998-05-20
IT98MI001110A ITMI981110A1 (it) 1998-05-20 1998-05-20 Sistema elettronico di controllo del funzionamento di lampade per l'illuminazione di emergenza

Publications (2)

Publication Number Publication Date
EP0961526A2 true EP0961526A2 (fr) 1999-12-01
EP0961526A3 EP0961526A3 (fr) 1999-12-08

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EP99201550A Ceased EP0961526A3 (fr) 1998-05-20 1999-05-15 Système de commande électronique pour l'opération d'éclairages de secours

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EP (1) EP0961526A3 (fr)
IT (1) ITMI981110A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1411617A1 (fr) * 2002-10-08 2004-04-21 Teknoware Oy Commande d'un groupe d'appareils d'éclairage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799039A (en) * 1985-01-30 1989-01-17 Dual-Lite Manufacturing Emergency lighting supervisory system
US4945280A (en) * 1987-10-29 1990-07-31 G.P.B. Beghelli S.R.L. Independent emergency lighting system with self-diagnosis
EP0490836A2 (fr) * 1990-12-07 1992-06-17 G.P.B. BEGHELLI S.r.l. Amélioration dans les systèmes independantes d'éclairage de secours avec signaux d'alarme pour incendies, gaz dangereux, pollution d'air et similaires
DE4134298A1 (de) * 1991-10-17 1993-04-22 Abb Patent Gmbh Steuerungs- und ueberwachungseinrichtung fuer eine notleuchte
EP0723384A1 (fr) * 1995-01-20 1996-07-24 AEG EWS Stromversorgungen Sörnewitz GmbH Circuit de garde commandé par programme et/ou de commande d'une installation d'éclairage de sécurité
US5680286A (en) * 1993-03-09 1997-10-21 Everbrite, Inc Load fault detector for high frequency luminous tube power supply

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799039A (en) * 1985-01-30 1989-01-17 Dual-Lite Manufacturing Emergency lighting supervisory system
US4945280A (en) * 1987-10-29 1990-07-31 G.P.B. Beghelli S.R.L. Independent emergency lighting system with self-diagnosis
EP0490836A2 (fr) * 1990-12-07 1992-06-17 G.P.B. BEGHELLI S.r.l. Amélioration dans les systèmes independantes d'éclairage de secours avec signaux d'alarme pour incendies, gaz dangereux, pollution d'air et similaires
DE4134298A1 (de) * 1991-10-17 1993-04-22 Abb Patent Gmbh Steuerungs- und ueberwachungseinrichtung fuer eine notleuchte
US5680286A (en) * 1993-03-09 1997-10-21 Everbrite, Inc Load fault detector for high frequency luminous tube power supply
EP0723384A1 (fr) * 1995-01-20 1996-07-24 AEG EWS Stromversorgungen Sörnewitz GmbH Circuit de garde commandé par programme et/ou de commande d'une installation d'éclairage de sécurité

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ALONSO J.M. ET AL: 'A SMART-LIGHTING EMERGENCY SYSTEM FOR FLUORESCENT LAMPS' ELECTRONIC POWER SUPPLY SYSTEMS. BRIGHTON, SEPT. 13 - 16, 1993, PROCEEDINGS OF THE EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, LONDON, IEE, GB vol. 3, no. 5, 13 September 1993, pages 310 - 315, XP000427035 *
VASILJEVIC D.M.: 'THE DESIGN OF A BATTERY-OPERATED FLUORESCENT LAMP' INTEGRATION, THE VLSI JOURNAL, NORTH-HOLLANDIEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US vol. 36, no. 4, 01 November 1989, pages 499 - 503, XP000071487 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1411617A1 (fr) * 2002-10-08 2004-04-21 Teknoware Oy Commande d'un groupe d'appareils d'éclairage

Also Published As

Publication number Publication date
EP0961526A3 (fr) 1999-12-08
ITMI981110A1 (it) 1999-11-20

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